Tubing spacer



sept. 23. 1924. 1,509,741

y C. H. BENCKENSTEIN TUBING S FACER Filed April 4. 1921 lili Patented Sept. 23, 1.924.

UNITED STATES PAT CHARLES II. BnNcKENsrnIN, or vINToN, LOUISIANA.

TUBING Application led April 4,'

To azz wam a my amm.-

Be it known that I, CHARLES H. BENCKEN- STEIN, a citizen of the United States, residing at Vinton, and State of Louisiana, tain new and useful -be no liability of the pipe or tubinggslipping. i K lt is often necessary that theposition of the working barrel of a well'pump be varied so that it will relative' t0 the oil,

'essary to vary the ylength of thel tubing.` rlihe prior practice has been to cut al tubing section to the required length, thread it, and then secure it to' the tubing. j Obviously this is a very crude method, and is'one that the well is a great distance from a blacksmithsvshop or foundry, it may 4be a question of before the tubing can be hauled to a foundry, be cut and threaded, and returned to the well. y

Further, as the length of the tubing has to'be varied whenever the depth of the oil-- in a well changes, or when it is placed in another well, it is apparent that this old method necessarily resulted inthe wasting of many pipe sections.

The present invention overcomesfthe above and other objections, as will appear from the description hereinafter.

Still another feature of my invention is to provide an apparatus of this character so in the parish of Calcasieu to provide an aplength, there ...will

be properly positimeplv water, or other liquid` beingpumped, and it therefore becomes necdays 1921. 'serial No. 458,307.

constructed that lthere can be no u of the .oil or other`liquid, through the adjusting mechanis leakage ENTI oFF1cE,. j

In its more subordinate features, my invention consistsl in certain details of conpecullar combinatlons of parts, g

struction and all of which will be fully described, specifically pointed out in the appended claims, and illustrated in the accompanying drawings, in which:

Figure 1 is an elevation of the tubing and the tubing spacer, the well casing being in section. A

Figure 2 is a taken through the axis of the tubing spacer; the rod spacer being in elevation. v Figure 3 is a cross-section taken on the line, 2 2 of Figure 2, lwith the rodspacer, and sucker rod omitted for the sake of clearness. f

Figures 4, 5,'r and 6, are detail views, of the gripping wedges. v

Numeral 1 indicates thebvell casing/with the usual tubing. 2 passing therethrough;

`and the tubing enclosing the sucker or pump refers generally to a rod 3. Numeral 4f rod spacer. rlhe mechanism of the rod spacer is not shown in fdetail, asy perse itforms no part of the present invention,

`and is the` subject matter of a separate apor about February 10,

plication, liled on 1921, Serial Number 443,841. The tubin tubular mem er v5 which the length of one of the tube sections. The tubular member is accordingly, broken away in the drawings. At the upper end of the tubular member, aY coupling' is shcwn, which is for the lpurpose of coupling on another section of pipe. I

To the lower end of the tubular mem'ber, is connected the element 7, which may be termed the top head.` This top .head has a relatively long cylindrical portion 8, projectin 'into the element '9, whichY may be` termed the bottom head. The top head is screw' threaded into the bottom head, as indicatedby numeral 10. v

A lock-nut 11 may be threaded onto the top head 7, for the purpose of preventing longitudinal sectional view spacer apparatus includes a is approximatelyv relative movement between the top and bottom head,V after the tubing has been secured in adjusted position.

For a portion of its length, the inner wall of the bottom head is tapered as desig' and 15, are arranged in the interior of the bottom head, and are adapted to coact with the tapering wall thereof. Inthe particular 'embodiment of the invention illustrated, I

- `showa three of these wedges, the wedges 13 and 14 biting upwardlA ,and the wedge 15 thus released,

iree'to be moved to any desired position in biting downwardly. O viously any number of these gripping wedges may be employed, and in so far as the invention is' concerned, it is immaterial what character of gripping surface is provided on the wedges, though it is preferable to have the greater part of the gripping surface acting upwardly, as the weight of the tubing is exerting a orcgJ downward.

The operation-ofthe apparatus thus far described' is as follows:

Assume the various elements to be "in the positionshown in Figure 2, that is in locked tubing, the lock-nut 11 .is first released, and the wbottom head is then unscrewed su'iciently to relieve the pressure exerted on the/'gripping wedges by the lower cylindrical portion 8 of the top head. The wedges are and the pipe or tubing 2 is --the tubular member l5. After thev pipe has ,'beeii moved to the desired exerting a and by 'reason of the tapering surface 12 of` position toy give the correct length of tubing, the bottom head 9 is screwed up, whereb the lower portion 8 of the top head Fis rawn downwardly, force. vonl the y ipp'ing wedges,-

the bottom head coacting with the tapering surfaces of the wedges, the .gripping wedges ,are caused to bite into, and securely hold, thefpipe in adjusted position.

` It is apparent that wirh the apparatus thusarjdescribed, a portion of the oil', o'r

other -liquidlrawn upthrough the pipe 2,

would lealr through anism." .T v y In order to prevent this leakage, the lower the adJustingv mechinterior portion of the bottom head is'made cylindrical, anda cylindrical portion,- around Ithe indicated by numeral 17, is inserted in the as shown. The adjusting mechanismis thereby made leak-proof. i

' I haveshown the rod spacer in connection `with the ytubing' scer, and it is contem plated that they e used in conjunction,

In order to vary thelength of the n ing, packing arran portion'fthereor' is screw threaded. desired type of packing,

piipe 2, and` l having a tapering though of course the invention is not limited to such use.

While I have shown and described the preferred construction and arrangement of the several elements employed, it is obvious that the invention is susceptible to consider able modication therein, and I thereore reserve the right to resort to all such le itimate changes as may be fairly embodied within the spirit and scope of the invention, as claimed.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A tubing spacer mechanism including relatively movable^ top and 'bottom heads through which the well tubing is adapted to pass, an integral annular member formed on one of the heads and projecting into the interior Aof'the other head, gripping means coacting with one of said heads and with the annular member of the' other head to grip the tubing, and means provided in said tubing spacer for rendering the same leak proof.

2. A tubing s acer mechanism including relatively mova le top and bottom heads through which the well tubing is adapted to pass, toni heads against relative movement, gripping means coacting with said heads, and adapted to ip the tubing, and meansprovided in said tubing spacer for rendering the-same leak-proof.

3. A tubing spacer mechanism including relatively movable top and bottom heads through which the well tubing is adapted to pass, an annular member carried on one of the heads and projecting into the interior of the other head, gripping means coacting member of'the'other head to grip the tubed in the Vinterior of the bottom head aroun the tubing, and a gland for engaging said packing.

" 4. A pipe spacer mechanism including relatively lmovable top and bottom heads through which the pipe is adapted to pass, a

ortionfof vthe interior ofgtlie'bottom head aving a -tapering. wedgin surface, gripping means coactinglwith t e grippin surace 'andfadapted to grip the pipe, the owen portion -o the interior of thebottom head being cylindrical, -andpacking arranged in said cylindrical portion. v

f 5. A tubing spacer mechanism including relatively movable top and bottom heads, through which the tubing is adapted to pass, a portion of the/interior of the bottom head wedging surface, gripping means coacting with the wedging surface and adapted to grip the tubin the lower portion of the interior of' the ottom head beinga cylindrical, a shoulder formedhctween means for locking the top and bot- -the tapering portion and the cylindrical portion, a gland screw threaded into the bottom head, and packing arranged between the shoulder and the gland.

6. A pipe spacer mechanism including relatively movable top and bottom heads, through which the pipe is adapted to pass, means for locking the top and bottom heads against relative movement, a portion of the l0 interior of the bottom head having a tapering wedging surface, gripping means coacting with the Wedging surface and adapted to grip the pipe, the lower portion of the'inl packing arranged between the shoulder and the gland.

CHARLES H. BENCKENSTEIN. 

